Discharge nozzle



Sept. 21, 1948. A. P. ARNO v 2,449,541

DISCHARGE NOZZLE Filed Aug. 2, 1945 I I I 5 l2 I, I3

I 9 llflllhlllllllllllill Anthony P Arno QWLLW Attorney Patented Sept.21, 1948 DISCHARGE NOZZLE Anthony Peter Arno, United States NavyApplication August 2, 1945, Serial No. 608,548

1 Claim.

(Granted under the act of March 3, 1883, as amended April 30, 1928; 370O. G. 757) This invention relates to discharge nozzles, and isparticularly directed to nozzles adapted to discharge fluids into acontainer without loss of fluid due to overflow.

An object of the present invention is to provide a discharge nozzle witha return flow line so that after filling a container, fluid willoverflow through the return line without loss.

A further object is to provide a gasoline nozzle having a gas cap with aback flow vent line in the cap for venting to a second container whenthe container has been filled to capacity.

These and other objects and advantages of the invention will be apparentfrom the following specification when taken with the accompanyingdrawings, in which:

Fig. 1 is a view of the nozzle partially in section; and

Fig. 2 is a front elevational view.

As shown by the drawings, the numeral I refers to a main line which isthreaded at one end 20 to receive the discharge end of a gasoline or anyother fluid line, and which extends axially through the mid portion of acap 2 being welded at its other end to a short length of flexible metalhose 3. The cap 2 consists of two parts, namely a hub 4 having anopening 6 and a cup-shaped member having an opening I, through whichopenings the main line I extends and is welded thereto to form a unitaryleak-proof device. The hub 4 is dish-shaped and has a horizontallydisposed flange 8 with bayonet type clips I I extending therefrom forengaging the inlet of the container being filled with gasoline. Thecupshaped member 5 has a vertically disposed flange 9 extendingoutwardly from the open end of the member 5 and its circumferentialportion resting against the back wall of the hub 4 to form aliquid-tight chamber ZI. A gasket may be positioned between the flange 9and the hub 4 to form a leak-proof seal. A second gasket I0, preferablymade of rubber, is positioned on the exposed side of the flange 9 whichcooperates with the bayonet clips II to form a seal with the inlet ofthe container being filled. On the hub 4 there is a second opening I3 towhich an overflow line I2 is welded. A plurality of back flow ventopenings I 4 are spaced laterally along the face of the cup-shapedmember 5.

In normal operation of the device, a fluid discharge line is threaded onthe free end 20 of the main line I and a return line secured to the freeend of the overflow line I2. The flexible hose 3 is inserted into theinlet line of the container to be filled, with a bayonet clip I Iclamped over the edge of the inlet to secure the cap thereto. Fluid isthen permitted to flow into the container being filled, causing the airwithin the container displaced by the incoming fiuid to flow outwardlythrough the openings I4, the chamber 2| and the overflow line I2. Whenthe container being filled has reached its capacity the fluid willoverflow through the line I2 without permitting any of the fluid tospill over. Fluid flowing through the overflow line will also serve asan indicator that the container is filled. This device may be adapted tobe used for filling any tank or container and is especially useful forfilling gasoline tanks where spillage creates an especially dangerouscondition.

While the form of device herein shown and described constitutes apreferred form of embodiment of the present invention, it is understoodthat other forms might be adopted, all coming within the scope of theclaim which follows.

The invention herein described may be manufactured and used by or forthe Government of the United States of America for governmental purposeswithout the payment of any royalties thereon or therefor.

What I claim is:

A container filling discharge nozzle comprising a main line, a flexibledischarge hose secured to one end of said main line, cap means axiallydisposed about said main line and secured thereto, said cap meanscomprising a hub member having an overflow vent therein and a cup-shapedmember with a flange portion abutting against said hub member to form aleak-proof chamber within said cap means, means secured to said capmeans arranged to cooperate with the inlet of a container being filledto attach said cap means to the inlet, said cup-shaped member having abottom wall extending a substantial distance below said inlet securingmeans, said bottom wall having a plurality of openings therethroughproviding a fluid escape passage to said chamber and through saidoverflow passage, whereby the filling of the cointainer is limited to alevel below its inlet determined by the depth of said cup-shaped memberand thus provide a reservoir to drain the nozzle without overflowingwhile said nozzle is being removed.

ANTHONY PETER ARNO.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,712,977 Bohnhardt May 14, 19291,810,822 Erickson June 16, 1931 1,941,304 Heylandt Dec. 26, 19332,208,989 Lewis July 23, 1940 2,399,167 Chouinard Apr. 3 0, 1946

